[   14.484625] ==================================================================
[   14.485151] BUG: KASAN: slab-out-of-bounds in memcmp+0x1b4/0x1d0
[   14.485501] Read of size 1 at addr ffff888102a4c418 by task kunit_try_catch/276
[   14.485790] 
[   14.485954] CPU: 1 UID: 0 PID: 276 Comm: kunit_try_catch Tainted: G    B            N  6.15.0-rc7 #1 PREEMPT(voluntary) 
[   14.486003] Tainted: [B]=BAD_PAGE, [N]=TEST
[   14.486016] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014
[   14.486038] Call Trace:
[   14.486051]  <TASK>
[   14.486067]  dump_stack_lvl+0x73/0xb0
[   14.486094]  print_report+0xd1/0x650
[   14.486117]  ? __virt_addr_valid+0x1db/0x2d0
[   14.486140]  ? memcmp+0x1b4/0x1d0
[   14.486157]  ? kasan_complete_mode_report_info+0x2a/0x200
[   14.486180]  ? memcmp+0x1b4/0x1d0
[   14.486199]  kasan_report+0x141/0x180
[   14.486221]  ? memcmp+0x1b4/0x1d0
[   14.486244]  __asan_report_load1_noabort+0x18/0x20
[   14.486265]  memcmp+0x1b4/0x1d0
[   14.486285]  kasan_memcmp+0x18f/0x390
[   14.486319]  ? trace_hardirqs_on+0x37/0xe0
[   14.486343]  ? __pfx_kasan_memcmp+0x10/0x10
[   14.486366]  ? __kasan_check_write+0x18/0x20
[   14.486385]  ? queued_spin_lock_slowpath+0x116/0xb40
[   14.486410]  ? __pfx_queued_spin_lock_slowpath+0x10/0x10
[   14.486446]  ? __pfx_read_tsc+0x10/0x10
[   14.486467]  ? ktime_get_ts64+0x86/0x230
[   14.486492]  kunit_try_run_case+0x1a5/0x480
[   14.486517]  ? __pfx_kunit_try_run_case+0x10/0x10
[   14.486539]  ? _raw_spin_lock_irqsave+0xf9/0x100
[   14.486561]  ? _raw_spin_unlock_irqrestore+0x5f/0x90
[   14.486584]  ? __kthread_parkme+0x82/0x180
[   14.486606]  ? preempt_count_sub+0x50/0x80
[   14.486631]  ? __pfx_kunit_try_run_case+0x10/0x10
[   14.486655]  kunit_generic_run_threadfn_adapter+0x85/0xf0
[   14.486682]  ? __pfx_kunit_generic_run_threadfn_adapter+0x10/0x10
[   14.486705]  kthread+0x337/0x6f0
[   14.486722]  ? trace_preempt_on+0x20/0xc0
[   14.486744]  ? __pfx_kthread+0x10/0x10
[   14.486763]  ? _raw_spin_unlock_irq+0x47/0x80
[   14.486783]  ? calculate_sigpending+0x7b/0xa0
[   14.486804]  ? __pfx_kthread+0x10/0x10
[   14.486822]  ret_from_fork+0x41/0x80
[   14.486843]  ? __pfx_kthread+0x10/0x10
[   14.486861]  ret_from_fork_asm+0x1a/0x30
[   14.486909]  </TASK>
[   14.486920] 
[   14.494624] Allocated by task 276:
[   14.494823]  kasan_save_stack+0x45/0x70
[   14.495037]  kasan_save_track+0x18/0x40
[   14.495320]  kasan_save_alloc_info+0x3b/0x50
[   14.495501]  __kasan_kmalloc+0xb7/0xc0
[   14.495664]  __kmalloc_cache_noprof+0x189/0x420
[   14.496011]  kasan_memcmp+0xb7/0x390
[   14.496193]  kunit_try_run_case+0x1a5/0x480
[   14.496353]  kunit_generic_run_threadfn_adapter+0x85/0xf0
[   14.496528]  kthread+0x337/0x6f0
[   14.496685]  ret_from_fork+0x41/0x80
[   14.496890]  ret_from_fork_asm+0x1a/0x30
[   14.497100] 
[   14.497200] The buggy address belongs to the object at ffff888102a4c400
[   14.497200]  which belongs to the cache kmalloc-32 of size 32
[   14.497716] The buggy address is located 0 bytes to the right of
[   14.497716]  allocated 24-byte region [ffff888102a4c400, ffff888102a4c418)
[   14.498082] 
[   14.498156] The buggy address belongs to the physical page:
[   14.498730] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x102a4c
[   14.499251] flags: 0x200000000000000(node=0|zone=2)
[   14.499735] page_type: f5(slab)
[   14.499969] raw: 0200000000000000 ffff888100041780 dead000000000122 0000000000000000
[   14.500290] raw: 0000000000000000 0000000080400040 00000000f5000000 0000000000000000
[   14.500625] page dumped because: kasan: bad access detected
[   14.500819] 
[   14.500892] Memory state around the buggy address:
[   14.501051]  ffff888102a4c300: 00 00 00 fc fc fc fc fc 00 00 00 fc fc fc fc fc
[   14.501269]  ffff888102a4c380: 00 00 00 04 fc fc fc fc 00 00 07 fc fc fc fc fc
[   14.502031] >ffff888102a4c400: 00 00 00 fc fc fc fc fc fc fc fc fc fc fc fc fc
[   14.502370]                             ^
[   14.502565]  ffff888102a4c480: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
[   14.502835]  ffff888102a4c500: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
[   14.503066] ==================================================================